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Finding the Fourth Proportional to 607,285.09, 910,318 and 207,652.56

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Solution

The fourth proportional to 607,285.09, 910,318 and 207,652.56 is: 311,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,285.09 : 910,318 = 207,652.56 : x
  2. Step 2: Convert to fraction form
    607,285.09/910,318 = 207,652.56/x
  3. Step 3: Cross multiply
    607,285.09x = 910,318 × 207,652.56
  4. Step 4: Simplify right side
    607,285.09x = 189,029,863,114.08
  5. Step 5: Solve for x
    x = 189,029,863,114.08/607,285.09
  6. Step 6: Final answer
    x = 311,270.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.